Re: 64 bit integer advice needed

[Owen Taylor <otaylor redhat com>]

Jeff Franks <jcf tpg com au> writes:

> Hi,
> 
> Can any one help me with this. I'm running into problems with my
> program and 64 bit integers on someone elses Alpha machine.
> 
> On my 32 bit machine glibconfig.h has the following typedefs:
> 
> typedef signed int gint32;
> typedef unsigned int guint32;
> G_GNUC_EXTENSION typedef signed long long gint64;
> G_GNUC_EXTENSION typedef unsigned long long guint64;
> 
> so the following to functions have a different signature and will
> compile OK.
> 
> void set_value(gint32 value);
> void set_value(guint32 value);
> void set_value(gint64 value);
> void set_value(guint64 value);
> 
> On an Alpha machine which has 64 bit integers glibconfig.h has these
> typedefs:
> 
> typedef signed int gint32;
> typedef unsigned int guint32;
> typedef signed long gint64;
> typedef unsigned long guint64;
> 
> On this machine it treats the 32 and 64 integer functions as the same
> and you get a compiler error. Should I be checking for 64 bit integers
> at configuration, and using a preprocessor define to prevent
> compilation of the 64 bit versions of the functions.

This sounds quite odd. I don't know any machines where int 
is 64 bits. What operating system?

Regards,
                                        Owen